OECD/IEA Climate Change Expert Group Papers

This series is designed to make available to a wider readership selected papers on climate change issues that have been prepared for the OECD/IEA Climate Change Expert Group (CCXG). The CCXG (formerly called the Annex I Expert Group) is a group of government delegates from OECD and other industrialised countries. The aim of the group is to promote dialogue and enhance understanding on technical issues in the international climate change negotiations. CCXG papers are developed in consultation with experts from a wide range of developed and developing countries, including those participating in CCXG Global Forums.

The full papers are generally available only in English.

The opinions expressed in these papers are the sole responsibility of the author(s) and do not necessarily reflect the views of the OECD, the IEA or their member countries, or the endorsement of any approach described therein.

Ensuring that climate finance is used effectively will help to maximise its impact. The effectiveness of climate finance can be defined as the extent to which an activity attains its stated aims. These aims can vary, depending on the source of climate finance and how it is channelled. There are...

A new international climate change agreement that will have legal force and be applicable to all countries is being negotiated under the auspices of the United Nations Framework Convention on Climate Change (UNFCCC). The agreement is to be adopted by 2015 and come into effect from 2020. An...

At the 16th Conference of the Parties (COP) in 2010, developed countries formalised a collective climate finance commitment made previously in Copenhagen of "mobilising jointly USD 100 billion per year by 2020 to address the needs of developing countries...from a wide variety of sources, public...

Mitigation pledges put forward by countries under the UNFCCC process are "made to measure" in that they are tailored to fit each country's individual circumstances. However, the pledges also need to be made to be measured so that we have a full understanding of how the various commitments add...

Greenhouse gas (GHG) emissions baselines are reference emissions levels. This paper focuses on projected forward-looking baselines that can be used both to inform national climate policy and to set goals that are defined relative to a business-as-usual (BaU) scenario. As some developing...

Carbon market mechanisms such as emissions trading systems and crediting mechanisms can have multiple objectives. A key goal is to lower the cost of achieving greenhouse gas (GHG) emissions reductions. Market mechanisms can also catalyse investment in low carbon technologies and practices,...

At COP 17 in Durban, countries defined a new market-based mechanism to promote cost-effective mitigation actions, guided by a set of principles previously agreed at COP 16. These principles include "stimulating mitigation across broad segments of the economy", "ensuring a net decrease and/or...

Developed countries have committed under the international negotiations to jointly mobilising USD 100 billion per year by 2020 for climate change mitigation and adaptation in developing countries. Yet consistent and comprehensive data to track this commitment are currently lacking. Such data...

The use of tradable greenhouse gas (GHG) units to meet emissions reduction goals is likely to continue after 2012 as many countries have expressed support for using market mechanisms to promote and enhance the cost-effectiveness of mitigation. Most such mechanisms would use tradable GHG units...

In 2010, the international community took steps to improve the system of reporting and verification under the United Nations Framework Convention on Climate Change (UNFCCC). Parties to the UNFCCC decided at the sixteenth meeting of the Conference of the Parties (COP 16) to enhance reporting for...

The Cancún Agreements formalise a collective commitment by developed countries to provide new and additional funding for action on climate change in developing countries both in the short- and longer-term. This collective financial commitment requires a system to measure, report and verify...

The Cancun Agreements outlined the list of topics to be included in biennial reports and indicated that guidelines for them were to be developed, but provided limited guidance on their structure and content. This paper proposes a structure for biennial reports for both developed and developing...

This paper examines environmental and institutional implications of the use of tradable GHG units under different international accounting scenarios in the post-2012 international climate change policy framework. A range of possible scenarios is presented based on analysis on various building...

This paper outlines options for new reporting guidelines for national communications from Annex I and non-Annex I countries, both for "full" national communications and biennial "updates". These reports can facilitate the sharing of information between Parties and may be used to assess the...

Market-based mechanisms offer a number of advantages to other regulatory approaches for GHG mitigation such as technology or performance standards and feed-in tariffs. Advantages include their ability to attain an emissions goal at lower cost and to create incentives for innovation among...

The term low-emission development strategies (LEDS) first emerged under the United Nations Framework Convention on Climate Change (UNFCCC) in 2008 and its possible role in a future climate framework continues to be debated. Though no formally agreed definition exists, LEDS are generally used to...

The UN Framework Convention on Climate Change (UNFCCC) and its Kyoto Protocol established reporting requirements for Parties. This has resulted in comprehensive and timely information on national greenhouse gas (GHG) emissions from Annex I Parties, periodic reporting of other information from...

Determining comparability of effort between mitigation actions and targets proposed by different countries is an ongoing issue for international climate negotiations. A number of indicators have been proposed to reflect comparability of effort and differences in national circumstances; key...

The current monitoring, reporting and review framework under the UN Framework Convention on Climate Change (UNFCCC) has a number of strengths and weaknesses. Weaknesses include inconsistent and/or incomplete self reporting of financial support; infrequent reporting; limited and incomplete...

This paper reviews proposals for the design of sectoral and related market mechanisms that are being debated both in the UNFCCC negotiations and in different domestic legislative contexts. Decisions on the design and scope of the mechanisms in the UNFCCC negotiations would affect the future...

The Bali Action Plan (BAP) indicated the importance of "measurable, reportable and verifiable" (MRV) greenhouse gas (GHG) mitigation actions and commitments, as well as support for GHG mitigation actions, in the post-2012 climate framework. Negotiations underway for this framework have...

Sectoral approaches are proposed as a means to broaden the global scope of greenhouse gas (GHG) mitigation to developing countries. Market mechanisms are put forward in that context to create incentives for mitigation in developing countries beyond the existing Clean Development Mechanism...

The Bali Action Plan introduced the notion of linking GHG mitigation action in developing countries with support for such action, in a "measurable, reportable and verifiable (MRV)" manner. However, it does not specify the relationship or link that may be made between nationally appropriate...